Cinder chrome building unit



June 11, 1935. A. HEDE CINDER CHROME BUILDING UNIT Filed July 29, 1932 INVENTOR.

BY W ATTORNEY.

Patented June 11, 1935 I a UNITED STATES PATENT OFFICE CINDER CHROME BUILDING UNIT Arvid Hede, Detroit, Mich, assignor to Cinder Chrome Company, Detroit, Mich, a corporation of Michigan Application July 29, 1932, Serial No. 626,199

5 Claims. 72-36) My invention relates to a chrome finished buildmineral coloring ingredients, also a special coming unit adapted for building wall construction. position of cinder concrete.

The object of my invention is to produce a spe- In general, my chrome finished building unit cial building unit in the form of either slab or comprises an artificial rock backing formed with block construction, that has the strength and parallel fiuted air channels therethrough, and 5 hardness of rock material, yet is very light in provided with one or more faces of the chrome weight. finish structure, all made as a solid mass and Another object is to produce a building block as an integral unit, and while I illustrate and unit of special structure and composition, havdescribe a simple building slab unit with but ing one or more chrome finished surfaces formed one finished face, it is to be understood that any 10 thereon. desired size or shape unit having more than one A further object is to produce a cinder chrome finished wall face may also be made and is withbuilding unit formed OfB. combination of two or in the meaning of this patent. more materials all united in a solid mass, and I will now describe more fully the detailed provided with ventilating channels therethrough, construction of my cinder chrome building unit, 15 and said building unit being so constructed as to referring to the drawing and the marks thereon. be adapted for either vertical or horizontal air In producing my building unit the mixtures channel construction. of materials are made in three or more separate These several objects are attained in the precontainers. ferred form by the construction and arrange- First, a base mixture is prepared from cement, 2 ment of parts more fully hereinafter set forth. ble dus fi e Sand, and a Chosen mineral Similar parts on the drawing are marked by coloring ingredient using cement as a unit porsimilar numerals or letters. tion for comparison, the preferred mixtureand Fig. 1 represents a plan view of the chrome finproportions are, 1 part cement, 1 parts of marished surface formed on a rectangular building ble dust or fine sand, and soluble mineral color- 25 unit, showing the relative positions of the tapered ing of variable amount depending on the color air channels formed therethrough. required, the term part meaning proportions Fig. 2 is an end view of the rectangular building by measure, all thoroughly mixed together in a unit showing the arrangement of the air chandry pulverized state.

nels as are formed therein, where cores of rec- Second, a backing mixture is provided from 30 tangular cross-section are used. a mixture of cement, sand and crushed cinders Fig. 3 is a modified end view of the same unit in about the following proportions, 1 part cement, showing the end arrangement of the air channels 1 parts sand, and 1 part crushed cinders, also where cores of cylindrical cross-section are used. mixed together in a dry state. Fig. 4 is an end view of the unit shown in Fig. 1. Third, a. liquid mixing solution is made from 35 It is known that there are various types and sodium silicate, boracic acid, casein, and salkinds of hollow building blocks and units, all conammoniac, and water as is more specifically set structed of various grades of building material, forth in my process patent application Serial No. but not of the structure and formation herein de- 626,200, filed July 29, 1932, heretofore referred scribed and claimed. to using about the following proportions, 30 40 Much difilculty has been experienced in progallons of water, 2%; pounds of sodium silicate, ducing a satisfactory building unit, comprising 1% pounds of boracic acid, 3 pounds of casein, the appearance of polished marble and the re- 4 ounces of sal-ammoniac, and small portions sisting strength of rock, without adding greatly of this solution are separated in different conto the weight of the wall structure. tainers, and each provided with a different min- 5 In accomplishing my invention I use a compoeral coloring ingredient. sition ofmatter comprising ingredients and ma Both the base mixture and the backing mixterials in the various proportions as is more fully ture are made into a plastic composition by comset forth and described in my composition patent bining the liquid mixing solution therewith.

application Serial No. 626,201, filed July 29, 1932, A special mould of the required size and shape 50 all compounded as set forth in my process patent for making the preferred type of building unit is application Serial No. 626,200, filed July 29, 1932, provided and formed with a polished bottom the ingredients and elements and materials theresurface, such as plate glass or other suitable I in used being sodium silicate, boracic acid, casein, polished material, said polished mould bottom sal-ammoniac, cement, marble dust or sand, and being painted, spotted or splashed until the en- 55 tire polished surface is covered, using the various colored solutions from the several small containers, said paint application being referredto as the surface glazing coat I-. On top of the glazing coat I is poured the plastic base mixture of, cement and marble dust mixed with some m ineral color, forming a thin layer of colored marble composition 2. 2 is placed a series of tapered cores 3, either rectangular or cylindrical in form and positioned parallel with each other, said cores extending the entire width of the mould as indicated in Fig. 1 of the drawing. While the marble layer 2 is in the plastic state, the backing mixture of cement and crushed cinders is poured thereon, completely covering the core members 3, forming a non-porous rock backing 4. Slight tamping may be applied to the backing composition for more securely imbedding the coarse cinder concrete aggregate into the marble layer composition, and the entire mass hardening as an integral unit. The special mixing solution permeating the cinder material and reduces it to a consistency of rock formation.

After the block composition has sufficiently dried the cores 3 may be removed from the unit by withdrawing same therefrom from one side of the mould, and the unit seasoned until the required hardness is attained. This building slab may be used in wall construction in the full size slab, or sawed into smaller building blocks as indicated by the dotted lines a. and b of Fig. 1.

If desired the core members 3 may be omitted during construction, leaving the entire backing a homogeneous mass, but the air channels which provide a complete circulation therethrough greatly increase the wall strength as all dampness is readily removed therefrom by either horizontal or vertical ventilation.

- Also when desired the backing 4 formed. of cinder concrete may be omitted, and the finished artificial marble slab or block be cemented to the face of any other backing block or wall such as brick or stone &c, although this is not the purpose of the invention, as such uniting of the marble slab or block will greatly diminish the strength and durability of the product, as the hardening properties of the special mixing solution are omitted.

It is apparent that my building unit is subject to various modifications in design, shape, sizes and composition of the plastic materials without departing from the spirit of my invention, and that any design such as column or double wall units having one or all faces finished and glazed Across this marble layer may be made, and I claim as my invention the design as herein illustrated and any other design that is substantially a substitution of parts therein shown.

Having fully described my cinder chrome building unit, what I claim as my invention and desire to secure by Letters Patent is: V

1. A building unit adapted for wall construction, formed of a plurality of different grades of cement concrete portions assembled in consecutive layers, the outer layer being a fine sand concrete containing sodium silicate, boracic acid, casein and salammoniac and is provided with an outside face glazing, said face glazing comprises a mixture of sodium silicate, boracic acid, casein and salammoniac.

2. A building unit adapted for wall construction, formed of a plurality of layers of, different grades of cement concrete portions, each layer containing sodium silicate, boracic acid, casein and sal-ammoniac the outer layer being a fine sand concrete artificial marble composition provided with an outside face glazing, said face glazing comprising .a mixture of sodium silicate, boracic acid, casein and sal-ammoniac.

3. A building unit adapted for construction purposes formed of a plurality of layers of different grades of cement concrete portions each layer containing sodium silicate, and boracic acid, said outer layer being a fine sand concrete imitation marble composition provided with the outside face glazing, and the inner layer being a cinder concrete mixture, said face glazing comprising a mixture of sodium silicate and boracic acid.

4. A building unit adapted for construction purposes formed of a plurality of different grades of cement concrete portions assembled in parallel layers each layer containing casein and salammoniac, the. outer layer being of a hard fine sand concrete artificial marble composition provided with an outside face glazing, the inner layer containing a cinder aggregate vsaid face glazing comprising a mixture of casein and sal-ammoniac.

5. A building unit adapted for building construction formed of two layers of different grades of cement concrete portions assembled in parallel layers each layer containing sodium silicate, boracic acid, casein and sal-ammoniac, one of said cement layers containing marble dust or sand and a mineral coloring ingredient and provided with an outer face glazing, and the other layer containing a course concrete aggregate, said face glazing comprising a mixture of sodium silicate, boracic acid, casein and sal-ammoniac.

ARVID HEDE. 

